device_hotplug_lock 880 drivers/base/core.c static DEFINE_MUTEX(device_hotplug_lock); device_hotplug_lock 884 drivers/base/core.c mutex_lock(&device_hotplug_lock); device_hotplug_lock 889 drivers/base/core.c mutex_unlock(&device_hotplug_lock); device_hotplug_lock 894 drivers/base/core.c if (mutex_trylock(&device_hotplug_lock))